This will be a slight rant, but I felt the need to share. I suffer from cerebral palsy, which severely impacts my skills with a controller – or mouse/keyboard for that matter. Needless to say my right hand movement is very limited. As a long time Sony fanboy, I've been looking jealous from the sideline at Microsoft, ever since they started dipping their toes in the field of accessibility. I mostly struggle with R1/R2/R3 (stick movement). My reaction time is very bad in my right hand – and my fingers can't really reach the shoulder area, unless I really concentrate. This often ends in cramps. I like to keep my peripherals official. It's a matter of not investing in a product that might become defunct suddenly. Plus, getting a hold of a scuf were I live ain't exactly easy. When the news dropped of the back button attachment, I was frankly very excited to try it out – and right now, I am lucky enough to get to do just that tonight.